Colt Case Ingersoll Garden Tractors

I was wondering if any of you from Canada would have a used spare breather tube for my 446 with the b43m engine, part # 123-1176. Thanks

The 123-1176 does not fit the B43M, it was only used on the early model BF engines. The correct breather tube for the B43M and B48M would be the 123-1429.

Bob

https://www.casegardentractorparts.com/12onbrtub4.html

Thanks Bob, my bad, I guess I have the old BF engine. It's a 1976 and has the old version of the breather tube.

FreddyFont wrote: ↑Sat Oct 25, 2025 5:07 pm Thanks Bob, my bad, I guess I have the old BF engine. It's a 1976 and has the old version of the breather tube.

That sounds right, the BF would have been used on the 446 until around 1976/1977.

Bob

For anyone wondering, the 123-1176 should look like this: